They played the original and the doctored versions on TV side by side. Anyone could see. The videos were the same until Acosta put his left hand down. On the original, she reached under his hand and kind of slightly knocked against it.
In the doctored version, a couple of frames are missing so it looks like the video is sped up and his hand appears to chop downward.
It was on TV. I took this picture. It was plain as day. Anyone could tell, You don't even need to be an expert.
The GOP, the party of deplorables.